uniapp getApp()

The getApp() method in Uniapp returns the global app instance. This method is used to access the global app instance's properties and methods.

For example, to access the global app instance's properties, you can use the following code:

const app = getApp()

console.log(app.globalData)

The code above retrieves the global app instance and logs its globalData property to the console.

Similarly, to call a method defined in the global app instance, you can use the following code:

const app = getApp()

app.myMethod()

The code above retrieves the global app instance and calls a method named 'myMethod'.